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Lynne
a51ec04adf
Real-world xHE-AAC streams and the ISO/IEC 23003-3 conformance sequences carry their loudness metadata exclusively as loudnessInfoV1() inside loudnessInfoSetExtension(), which was previously rejected with AVERROR_PATCHWELCOME, making such streams undecodable and loudness normalization inoperative on them. loudnessInfoV1() is identical to loudnessInfo() apart from an added eqSetId field. Parse it, restrict measurement selection to eqSetId == 0 (in line with the downmixId/drcSetId restrictions), and skip unknown loudnessInfoSetExtension() payloads using their explicitly coded size instead of erroring out.
FFmpeg README
FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.
Libraries
libavcodecprovides implementation of a wider range of codecs.libavformatimplements streaming protocols, container formats and basic I/O access.libavutilincludes hashers, decompressors and miscellaneous utility functions.libavfilterprovides means to alter decoded audio and video through a directed graph of connected filters.libavdeviceprovides an abstraction to access capture and playback devices.libswresampleimplements audio mixing and resampling routines.libswscaleimplements color conversion and scaling routines.
Tools
- ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
- ffplay is a minimalistic multimedia player.
- ffprobe is a simple analysis tool to inspect multimedia content.
- Additional small tools such as
aviocat,ismindexandqt-faststart.
Documentation
The offline documentation is available in the doc/ directory.
The online documentation is available in the main website and in the wiki.
Examples
Coding examples are available in the doc/examples directory.
License
FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.
Contributing
Patches should be submitted to the ffmpeg-devel mailing list using
git format-patch or git send-email. Github pull requests should be
avoided because they are not part of our review process and will be ignored.